curd 
(kûrd)
(kûrd)n.
1. The part of milk that coagulates when the milk sours or is treated with enzymes. Curd is used to make cheese.
2. A lump of curd: cheese curds.
3. A coagulated liquid that resembles milk curd.
intr. & tr.v. curd·ed, curd·ing, curds
To form or cause to form into curd; curdle.
[Middle English, variant of crud; probably akin to crowden, to press; see CROWD1.]
curdy adj.